Wheel-puller



G. E. FRISZ AND 1. D. WILTSHIRE.

WHEEL PULLER.

APPLICATION FILED JULY 1, 1918.

1,328,668 Patented Jan. 20, 1920.

I N VEN TOR.

WITNE'SS:

I 6173. fizsz 9 W Ire tTNTTlTlD S ATES OFFICE. I

GEORGE E. FRISZ AND JAMES D. WILTSHIRE, OF INDIANAPOLIS, INDIANA.

WHEEL-PULLER.

Specification of Letters Patent. Patented J an. 20, 1 920.

Applicationfiled July 1, 1918.- Serial No. 242,799.

To all whom it may concern:

Be it known that we, GEORGE E. Fnrsz and James D. Wrnrsnrnn, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Wheel-Pullers, of which the following is a specification. v

The present invention has relation to that type of tool or implement known generally as a wheel puller, but we desire it to be understood that this term is not used in its restrictive-sense becausethe device is capable of utility for purposes other than comprehended by the expression, as will herein after appear.

The primary object of our invention is to provide a device of this character by means of which to remove wheels, gears, spindles, etc., which will be as nearly universal as possible in respect to application to objects or elements of this nature of different shapes, sizes and construction. For example, the device in question is so constructed as to remove an automobile wheel. equally as well as it will remove a gear or pinion from its shaft, and in respect to its wheel removing function the device is one that may be usedfor removing a wheel either by the spoke engaging method or by the hub engaging method, and when by the latter method is capableof application to substantially every style or size of hub thread now employed upon motor vehicles, regardless, furthermore, of whether the hubs are internally or externally threaded.

To this end the invention is provided with adjustable gripping or pulling instrumentalities interchangeable in character so as to accord with the work to be done.

These and such other objects as may here inafter appear are attained by the novel construction, combination and arrangement of parts to be hereinafter specifically described and claimed. Reference will now behad to the accompanying drawings forming a part of this specification, wherein:

Figure 1 is a front elevation of a device constructed in accordance with my invention, showing the use of the threadedelements provided for engagement with wheel hubs;

Fig. 2 is asectional view on the line 2-2 ,ot iig F 5 1s an enlarged fragmentary seetional view of the swiveled end of the pressure screw.

Fig. 6 1s a perspective View of. one of the studmembers provided with convex threaded surfaces, as distinguished from the concave surfaces shown in Fig. 8.

Throughout the following detail description and on the several figures of the drawings, similar parts arereferred .to by like reference characters.

Referring to the drawing, -1 indicates. a

body member preferably. recessed, or chambered at one side as indicated at 2 and provided at its opposite sidewith radial webs 3 for strengthening the body. -The body is provided with a threaded boss at "its center to receive an adjustable pressure screw l which is designed to be engaged with the aXleor shaft on whichtheuwheel or gear to be removed is mounted. This screw as shown in Fig. 2 is preferably providcd with a swiveled extremity 4 whereby to prevent injury to the object against which it is engaged. I

The body 1 is provided with a series. of radially extending slots ,5 in which are mounted the desired object engaging elements by means of which the gear or wheel is positively gripped preparatory to the pulling operation. WVhere it is intended to pull an automobile wheel the type of element which is mounted in this slot takes the form, preferably, shown in Fig. The member, it will be observed, is formed with a rectangular intermediate portion 6 where the said member engages with the walls, of the slot. in which it is, mounted, this rectangular formation preventing the stud, as

either of a dilferentsize ,o r;of,,adifierent types or sizes of threads. It is to be understood that while the surfaces of the stud, which is shown in Fig. 3, are concave, we comprehend that studs provided with convex thread surfaces may also be utilized as shown in Fig. 6, so that the implement may be used for removing wheels by engagement with external or internal threads on the hub, as the case may be. Usually the hubs of truck wheels are internally threaded while the hubs of other types of motor vehicles are externally threaded, and hence the provision of the different types of studs referred to.

A very important feature of our device is the provision of a set screw or its equivalent, so arranged as to coact with the adjacent stud upon the outer side of the same and opposite to the face which is engageable with the wheel hub. In the drawing these studs are designated 9 and are radially arranged to be received by threaded openings in the periphery of the body 1 and screwed into engagement with the studs which are mounted in the radial slots 5 as hereinbefore described. The function of said set screws is to take up the strain which is placedupon the studs when the device is operated in the usual manner for pulling the object to be removed. In other words, the f set screws 9 prevent the spreading of the stud members or the object engaging elements that may be mounted in the slots 5. In the use of the device these studs furthermore may be employed to obtain the proper adjustment of the object engaging elements into positive gripping or engaging position with respect to the object which is to be pulled.

As shown in Fig. 4, we may substitute for the threading stud members shown in Fig. 3, pulling arms 10 each of which at one end is bent to provide a hook 11 and at the other end threaded to receive a clamping and adjusting nut 12. Obviously these arms may be adjusted radially with respect to the body 1 and axially with respect thereto, so that the arms may be made longer or shorter, a cording to the position of the part to be engaged thereby, or outwardly and inwardly accordiug to the size of the object to be engaged. These arms are capable of being engaged with the peripheries of gears, and will take gears of different thicknesses because of the adjustment just above de scribed. Or they may be engaged with the spokes of wheels if it is desired to remove the wheel by this method instead of by the hub engaging method.

Describing the use of the device, in removing wheels by engagement of the threaded stud members with the hub of the wheel, having first determined the proper thread surface 8 of the stud which will correspond with the thread on the hub, the studs are adjusted in these slots so as to fit the particular hub. The body is then screwed upon the hub a suflicient distance and the screws 9 adjusted so as to hold the studs firmly against the hub. The pressure screw 4 is then screwed into contact with the spindle or axle of the wheel and enough pressure exerted thereupon to effect the displacement of the wheel in the customary manner. A very considerable pressure may be exerted upon the pressure screw 4 because of the coaction of the set screws 9 with the thread ed stud members which prevents any tendency of these last mentioned members to separate under the strain. With this coop eration, if it is desired to remove a wheel of a different size than the one previously removed, the threadedstuds are moved outwardly or inwardly as found necessary in the slots 5 of the body.

When the device is used for removing gears, the arms 10 are substituted for the studs. Usually where arms of this character are employed there is a tendency for said arms to spread, but this action .is prevented as above mentioned, by the coaction of the set screws 9 therewith. If the gear to be removed is formed with threaded openings,

, ordinary cap screws may be substituted instead of the arms or threaded studs herein described.

In addition to the use of the separate wheel-part engaging elements, in the manner above described, the two types of parts, by reasons of the interchangeability herein referred to may be used simultaneously. That is to say, where sufficient engagement is not likely to be afforded by either the threaded studs alone or the pulling arms alone, both studs and arms may be used to engage the part to be removed, the threaded studs to engage the threaded portions of the hub, and the arms to engagethe hub flange or the spokes of the wheel as found convenient by virtue of the particular construction of the wheel. or part to be removed. Furthermore, should the portions of the/threaded hub which are engaged by the threaded studs be mutilated by excessive pressure, the threaded studs where this occurs, may be removed and a pulling arm substituted, shifting the threaded studs to the relative position formerly occupied by the pulling arm which is substituted.

Obviously, the device has a wide range of utility owing to the interchangeability of the parts employed, and the application of the device to the work to be done is greatly facilitated because of the readiness with with or adjusted to such position as not to coact With the object to be removed, but owing to the fact thata large number of these object engaging elements, relatively speaking, is employed, a better gripping action is obtained than would be the case in the event the number of such elements was not so great.

Having thus described the invention, what We claim as new is:

1. A universal puller device of the class described comprising a body, a pressure producing member mounted thereupon for efiecting removal operation, and interchangeable wheel part engaging members adapted to be engaged with different parts of the hub or member to be removed.

2. A device of the class described comprising a body, a plurality of radially adjustable object engaging elements, means for holding said elements at adjusted positions, separate adjustable means cooperative with each of said elements to prevent movement thereof incident to stress thereupon during operation, and a pressure member adj ustably mounted in said body.

3. A device of the class described comprising a body having a series of slots formed therein, object engaging elements mounted in said slots, means for holding said elements at adjusted positions in the slots, an adjustable setting member in said body adjacent to each slot and its object engaging element and arranged to contact with the latter to prevent accidental movement of said element, and a pressure screw disposed for exerting pressure to produce movement of the part engaged by said elements.

t. A wheel puller of the class described comprising a body, a series of hub engaging members adjustably mounted thereon, each member being provided with diflerently threaded surfaces whereby to enable application to differently threaded hubs, and

means for imparting movement to said body.v

5. A wheel puller of the class described comprising a body, a series of poly sided hub engaging studs mounted thereon, each stud side having its surface provided with threads, and means for exerting pressure to produce movement of the body.

6. A wheel puller of the class described comprising a body, a series of poly-sided hub engaging studs mounted thereon, each stud side having its surface curved to conform to the shape of the hub with which it is engageable and each face having a different thread, and means for holding said studs at adjusted positions.

7 A Wheel puller of the class described comprising a body, a series of poly-sided hub engaging studs mounted thereon, stud side having its surface curved to conform to the shape of the hub with which it is engageable and each face having a different thread, means for holding said studs at adjusted positions, means mounted on said body for engagement with the face of said stud opposite to its hub engaging face to prevent accidental movement of the stud when pressure is exerted thereupon, and means carried by said body for imparting movement thereto to effect removal operation.

8. A wheel puller of the class described comprising a body, interchangeable object engaging members adapted for disposition in said body and adjustable axially and radially of the body, and pressure means for producing movement of the body when the members are in engagement with the object to be removed.

9. A wheel puller of the class described comprising a disk-like body, object engaging members mounted in said body and adjustable radially with respect to the axis of the body and adjustable axially with respect to said body, means for producing either of the adjustments, and a threaded pressure member mounted in said body for imparting movement thereto when the object engaging elements are in operative position with re spect to the object to be displaced.

10. A wheel puller of the class described comprising a disk-like body having a series of radiating slots formed therein, object engaging members mounted in said slots and adjustable radially with respect to the axis of the body according to the size of the object and adjustable axially with respect to said body to produce a longer or shorter reach of said members, a threaded pressure member mounted in said body for imparting movement thereto when the object engaging elements are in operative position with respect to the object to be displaced, and adeach justable means for limiting the radial movement of the object engaging members.

In testimony whereof We affix our s1gnatures.

GEORGE E. FRISZ. JAMES D. WILTSHIRE. 

